diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
index dadafc3d399e..06040f508a35 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
@@ -16,6 +16,50 @@
 		stdout-path = "serial2:1500000n8";
 	};
 
+	adc_keys: adc-keys {
+		compatible = "adc-keys";
+		io-channels = <&saradc 1>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1800000>;
+		poll-interval = <100>;
+
+		vol-up-key {
+			label = "volume up";
+			linux,code = <KEY_VOLUMEUP>;
+			press-threshold-microvolt = <1750>;
+		};
+
+		vol-down-key {
+			label = "volume down";
+			linux,code = <KEY_VOLUMEDOWN>;
+			press-threshold-microvolt = <297500>;
+		};
+
+		menu-key {
+			label = "menu";
+			linux,code = <KEY_MENU>;
+			press-threshold-microvolt = <1305500>;
+		};
+
+		home-key {
+			label = "home";
+			linux,code = <KEY_HOME>;
+			press-threshold-microvolt = <621250>;
+		};
+
+		back-key {
+			label = "back";
+			linux,code = <KEY_BACK>;
+			press-threshold-microvolt = <980000>;
+		};
+
+		camera-key {
+			label = "camera";
+			linux,code = <KEY_CAMERA>;
+			press-threshold-microvolt = <787500>;
+		};
+	};
+
 	clkin_gmac: external-gmac-clock {
 		compatible = "fixed-clock";
 		clock-frequency = <125000000>;